Building a van for the north woods
Width and clearance decide more than power. The Superior National Forest warns that many of its roads are single lane with occasional wide turnouts, that you may have to back up to let an oncoming vehicle pass, and that there may be logging trucks on them. A long van with a rear that overhangs is a hard thing to reverse a quarter mile on gravel. The Chippewa sorts its roads the same way, into high standard roads for passenger cars and low standard roads managed for high clearance.
Then build for the season. Voyageurs plows ice roads that take vehicles under 7,000 pounds gross weight, which is a real ceiling on a heavy van. Ask a builder what the finished vehicle weighs, how the heater and plumbing behave on a night well below zero, and where a shovel, traction boards and recovery gear live where you can reach them without unpacking the bed.